Abstract: A electric oven is provided that includes a body, a cooking chamber located within the body for receiving food, the cooking chamber having an upper surface, a lower surface, and a rear surface joining the upper surface to the lower surface, at least one of a convection heater located at the rear surface of the cooking chamber and a bake heater located at the lower surface of the cooking chamber, and at least two broil heaters located at the upper surface of the cooking chamber, each of the at least two broil heaters being individually operable. Methods for preheating the electric oven are also provided.

Abstract: A cooling and exhaust system of a dual oven has upper and lower ovens, in which, in one aspect, an installation structure of a cooling fan and an exhaust structure provided for respectively cooling and exhausting the upper and lower ovens may be integrated into a simplified structure having common components to increase the manufacturing productivity. In another aspect, fans provided at the upper and lower ovens may be independently controlled to operate at different speeds according to a desired operation to maximize the cooling efficiency.

Abstract: An electric oven includes an oven body, a first convection system having a first convection heater and a first convection fan that are installed in the oven body to operate for a first space in the oven body, and a second convection system having a second convection heater and a second convection fan that are installed in the oven body to operate for a second space in the oven body. Further, the first and second convection fans are driven by a single common driving unit.

Abstract: A cooking device including a cooking cavity, a fan located in the cooking device, the fan being configured to force air into the cooking cavity, and at least one optical heater to supply optical wave energy to heat the forced air provided by the fan.

Abstract: An electric range includes a circuit board provided with at least one semiconductor chip and adapted to control an electric current to be applied to an induction heating device, a heat sink to absorb heat of the semiconductor chip to discharge the heat to the outside, and at least one heat spread clip to fix the semiconductor chip to the heat sink to conduct the heat of the semiconductor chip to the heat sink.

Abstract: An electric oven is provided. The electric oven includes a cavity, a plurality of convection systems each having a convection heater and a convection fan, and a tray dividing the cavity into different spaces. The convection systems are operated for the respective different spaces.